JPS5778059A - Exposure device - Google Patents

Exposure device

Info

Publication number
JPS5778059A
JPS5778059A JP15415780A JP15415780A JPS5778059A JP S5778059 A JPS5778059 A JP S5778059A JP 15415780 A JP15415780 A JP 15415780A JP 15415780 A JP15415780 A JP 15415780A JP S5778059 A JPS5778059 A JP S5778059A
Authority
JP
Japan
Prior art keywords
traveling
mirror
lens
mirrors
original
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15415780A
Other languages
Japanese (ja)
Inventor
Toyokazu Satomi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP15415780A priority Critical patent/JPS5778059A/en
Publication of JPS5778059A publication Critical patent/JPS5778059A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/522—Projection optics
    • G03B27/525—Projection optics for slit exposure
    • G03B27/526—Projection optics for slit exposure in which the projection optics move

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)

Abstract

PURPOSE:To reduce the switching time for optical paths by turning a prisms or roof mirrors in association to the direction switching operation of the relative reciprocating movement of an original and an optical system by prescribed angles. CONSTITUTION:During forward moving of the 1st traveling mirror 6, and the 2nd traveling mirrors 7, 8, 9, the image light from an original passes through the 1st traveling mirror, and 2nd traveling mirror 7, the 1st lens 10, a prism 11, the 1st lens 10, and a roof mirror 13 successively and is irradiated to a photoreceptor 15. Next, during backward movement of the 1st traveling mirror 6 and the 2nd traveling mirrors 7, 8, 9, the image light from the original 2 passes through the 1st traveling mirror, the 2nd traveling mirrors 8, 9, the 1st lens 10, the prism 11, the 2nd lens 22, and a static mirror 14 successively and is irradiated to the photoreceptor 15. Since the imaging positions vary during forward movement and backward movement, changing the timing for feedling transfer paper at the forward moving and backward moving suffices.
JP15415780A 1980-10-31 1980-10-31 Exposure device Pending JPS5778059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15415780A JPS5778059A (en) 1980-10-31 1980-10-31 Exposure device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15415780A JPS5778059A (en) 1980-10-31 1980-10-31 Exposure device

Publications (1)

Publication Number Publication Date
JPS5778059A true JPS5778059A (en) 1982-05-15

Family

ID=15578079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15415780A Pending JPS5778059A (en) 1980-10-31 1980-10-31 Exposure device

Country Status (1)

Country Link
JP (1) JPS5778059A (en)

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